1. Tardigrade
  2. Question
  3. Chemistry
  4. The incorrect statement in respect of chromyl chloride test is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The incorrect statement in respect of chromyl chloride test is

ManipalManipal 2009Organic Chemistry – Some Basic Principles and Techniques

Solution:

Chromyl chloride test is used for $Cl ^{-}$ ions. Chlorine is not liberated in this test.
$4 NaCl + K _{2} Cr _{2} O _{7}+3 H _{2} SO _{4} \longrightarrow K _{2} SO _{4}+2 Na _{2} SO _{4}+\underset{\overset{\text{chromyl chloride}}{\text{(reddish brown vapour)}}}{2 CrO _{2} Cl _{2} \uparrow}+3 H _{2} O$
$CrO _{2} Cl _{2}+4 NaOH \longrightarrow 2 NaCl + Na _{2} CrO _{4}+2 H _{2} O$
$Na _{2} CrO _{4}+\left( CH _{3} COO \right)_{2} Pb \longrightarrow 2 CH _{3} COONa+\underset{\text{lead chromate}}{PbCrO _{4}}$